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Our Certificates

Letina products are manufactured according to the latest safety and quality standards.

Here at Letina we pride ourselves on our commitment to excellence. Our goal is to surpass every industry standard in order to provide you with products of the highest quality. 

TÜV SÜD’s mission is to inspire trust in technology, enabling progress by managing technology-related risks and facilitating change – “Add value. Inspire trust.”. For that reason, they are our inspection agency of choice and all of our certificates are issued by TÜV SÜD.

Letina products are made according to the latest standards for fusion welding (EN ISO 3834-3) and pressure vessel manufacture (ASME U and PED 2014/68/EU).

EN ISO 3834-3

Quality requirements for fusion welding of metallic materials

ISO (the International Organization for Standardization) is a worldwide federation composed of representatives from various national, standard-setting organizations. Since 1947, the organization promotes worldwide proprietary, industrial, and commercial standards. It is headquartered in Geneva, Switzerland, and works in 164 countries.

ISO 3834-3:2005 defines standard quality requirements for fusion welding of metallic materials both in workshops and at field installation sites.

PED 2014/68/EU

Pressure Equipment Directive

The Pressure Equipment Directive (PED) applies to the design, manufacture and conformity assessment of pressure equipment and assemblies with a maximum allowable pressure greater than 0.5 bar gauge including vessels, piping, safety accessories and pressure accessories.

The PED provides a legal structure whereby pressure equipment can be manufactured and sold throughout the European Union without having to go through a local approval regime in every member state.

ASME U

Boiler and Pressure Vessel Code

ASME stands for “American Society of Mechanical Engineers”, a non-profit organization with the goal of “helping the global engineering community develop solutions to benefit lives and livelihoods”.  ASME is one of the leading international standards and code developers for the mechanical engineering industry

The ASME Boiler and Pressure Vessel Code (BPVC) is a universally-acknowledged set of standards developed by the American Society of Mechanical Engineers. It regulates the design, manufacture, installation, inspection and care of boilers, nuclear components, and other pressure vessels. 

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